3. a ribosome is cellular machinery that is located in the and assembles

nucleus; proteins during the process of transcription

cytoplasm; mrna from the regulatory region of dna

nucleus; dna using a template

nucleus; mrna from the regulatory region of dna

cytoplasm; proteins from mrna instructions

cytoplasm; proteins from mRNA instructions

Explanation:

The ribosome is an organelle attached to the endoplasmic reticulum in the cytoplasm.

It is the ribosome that helps to make the proteins with the help of the instruction carried on the mRNA.  The mRNA is transcribed from the DNA.

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Cytoplasm, proteins from mRNA instructions

Further Explanation

Ribosome They are small granular structures involve in protein synthesis. Sometimes they are also called protein factories.

Structure of ribosome  

Ribosomes are non-membranous in structure. They contains 37 to 62% of ribonucleic acid and remaining portion of proteins.

Location Of ribosome

They may be attached to Endoplasmic reticulum or disperse in the cytoplasm. Both animal and plant cells have ribosomes. Eukaryotic ribosome consist of 2 subunits larger subunit and smaller subunit which is 60s and 40s respectively

Function of ribosomes

They synthesize protein which is needed by many cellular functions for example respiration and in repairing.

Answer details

Subject: Biology

Difficulty Level: High school

Key words

Ribosomes

Structure of ribosomes

Location of ribosomes

Function of ribosomes

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